How It Works

How It Works:
The Current Standard

Today’s traveling wave parametric amplifiers (TWPAs) are primarily built using Josephson Junctions, nonlinear superconducting elements that enable the amplification of extremely weak quantum signals. This approach comes with major limitations: Josephson Junction (JJ) –based TWPAs are magnetically sensitive, fragile, and difficult to manufacture at scale. Between bulky magnetic shield required for operation and prohibitive cost of production, JJ based systems are a fundamental roadblock to scaled, fault tolerant quantum computing.

Our Approach: Redefining the Amplifier

At Bifrost Electronics, we’ve developed a new class of TWPA that eliminates the need for Josephson Junctions altogether. Because our technology remains unaffected by B-fields well over 2T, Heimdall TWPAs require no shielding and can be packed densely in a cryostat. They are more durable, and significantly more affordable than JJs, and being built using CMOS-compatible processes means our amplifiers are scalable by design, enabling seamless integration into existing quantum and classical systems. Our approach simplifies manufacturing while allowing higher qubit counts, removing one key engineering bottleneck limiting the growth of fault-tolerant quantum computing.

Why It Matters

By removing the constraints of Josephson Junctions on scale and footprint, Bifrost Electronics is unlocking a key barrier on the path toward scalable, reliable quantum hardware. Our amplifiers are easier to produce and integrate, while being purpose-built to bring quantum performance out of the lab and into real world applications. This breakthrough makes it possible for researchers, hyperscalers, and defense innovators alike to build larger, more stable, and more affordable quantum systems.

Bifrost is helping quantum technology reach the scale, cost, and reliability that true commercial adoption demands, bridging the gap between research projects and deployable solutions.

Features

Compact and Robust

With a minimized physical footprint and reinforced thermal and electronic stability, Heimdall is built for real-world deployments, from research labs to scalable quantum data centers.

Magnetic Field Immunity

Unlike traditional superconducting amplifiers, Heimdall operates without the need for magnetic shielding, enabling seamless integration into larger systems and reducing operational overhead.

Quantum-Limited Performance

Achieve ultra-low-noise readout with broadband operation. The Heimdall is optimized for high-fidelity qubit measurements across a wide frequency range.

Become Our Partner

We’re doing our part in making, reliable, robust, and scalable readout systems. Contribute to the legacy of quantum computing and partner with Bifrost today.